The astf prequel novel, "Ghosts of Yesterday", is apparently on some bookstore shelves now– if you're a Canadian airline traveller, as the book was found at the Calgary or Vancouver airports. ArgenBlargen, in his inaugural Allspark posting, wasn't sure which airport he discovered it in, but he's shared a brief, spoiler-laden review of the book, which can be read here. If you've found a copy of the book, let us know.